FIELD: chemistry.
SUBSTANCE: present invention relates to vanadium-titanium oxide catalysts, used in production of methanoic acid through gas-phase oxidation of formaldehyde using oxygen and methods of obtaining methanoic acid using these catalysts. Described is a catalyst based on vanadium and titanium oxides, mainly containing nano VOx particles in form of a monolayer surface coating of titanium oxide. Content of the crystalline phase of vanadium oxide is not more than 20 wt %, and mainly not more than 8.0 wt % of its total content. Described also is a method of obtaining methanoic acid through oxidation of formaldehyde using oxygen in one or several serial pipe reactors in the presence of the above described catalyst.
EFFECT: increased catalyst activity and increased output of methanoic acid.
7 cl, 12 ex, 1 tbl, 1 dwg
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